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Digital Computer Electronics

Digital Computer Electronics
The reduced form of the Boolean expression (A+B)(A+C) is:

A+BC
AB+AC
AC+B
A+B+C
None of these

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Digital Computer Electronics
With positive clocking the clock signal must be _____ for the flip-flop to respond.

high
set
low
None of these
race

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Digital Computer Electronics
What is the hexadecimal equivalent of a binary number 10101111

All of these
9E
AF
8C
None of these

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Digital Computer Electronics
An AND gate has 7 inputs, what is the only input word that produces a 1 output?

None of these
1110000
1111111
1111

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Digital Computer Electronics
Conversion of an octal number 1258 to its decimal number is

8510
8710
9010
None of these
9910

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Digital Computer Electronics
A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?

32,740, 32K
None of these
16,384, 16K
4,095, 4K
46,040, 46K

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